1. Status of the Amaranthus Seed Collection David M. Brenner North Central Regional Plant Introduction Station Department of Agronomy, Iowa State University

2. Seed Jars

3. Tents

4. Amaranthus collection 3,345total accessions 3,193(94%) available 3,235(97%) backed up at the NCGRP 72seed orders 2012 969packets distributed 2012 512 (15%) accessions distributed 2012 2,339(70%) have permanent PI numbers

5. National Plant Germplasm System GRIN (our web site) http://www.ars-grin.gov/npgs/

6. Images and other data online

7. Diversity in Amaranthus Grain (three species) Vegetable (numerous species) Ornamental (four important species) Wild (most of the 70 species)

9. Amaranthus species 40 of the estimated 70 Amaranthus species Most recent Amaranthus ×tucsonensis from Arizona in 2010 (PI 664490)

10. Super Dwarf Amaranthus caudatus

11. Plainsman beside a dwarf in 2004

13. Improved dwarf lines 2013

14. Amaranth Institute Missouri 2001 The weeds were not there the previous year The harvest was okay, not too many black weed seeds

15. Crop-weed hybrids

16. counting weedy off-types

17. % Crop-weed hybrid progeny Place ‘D136 ‒ 1’ ‘Plainsman’ East Lansing, MI 0.21.2 Ames NE, IA 0.02.0 Ames SW, IA 0.050.2 Culver, IN 0.0 Rochester, IN 2.343.6 Urbana, IL 0.76.0 Butlerville, IN 0.21.5 Columbia, MO 2.417.7 Carbondale, IL 15.982.7 TOTAL 2.524.3 ‘D136-1’ has about 1/10 th as many as ‘Plainsman’

18. The long-day growth chamber 2012

19. Daylength Sensitivity

20. Two Planting Dates in 2013 June 14 versus August 1

21. Male Sterility Peters and Jain 1987 Plant breeding Aid F 1 hybrid vigor Are hybrid seeds wanted?

22. Green Vegetable and Grain xxx xx xxx

23. The End

24. Guinness World Record 2004 15 ft 1 in (4.61m) 2007: 27 ft 10 in, (8.48 m) Jesse Eldrid of New York

25. Biomass Dr. Muchna, Czech Republic Has 15 t/ha Wants 20 t/ha economic threshold for electric power generation Breed to increase dry mater from 15%

26. ‘Pillar Orange’ and ‘Pillar Red’

27. National Plant Germplasm System http://www.ars-grin.gov/npgs/

30. Gomphrena nealleyi

33. F 1 100% Male Sterile from PI 568125 X K432 Restore fertility?

34. Spaced Nursery 2003 Only short plants selected Bags for self pollination

35. Shattering

36. Stem boring insects

37. First frost

38. Amaranthus tricolor disease Phomopsis amaranticola Studied by Charlie Block Stem boring insects are also present

40. Tall Biomass DB 98246

41. dwarf 2008